C720A (C4751i)

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ByEric Ditges
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Contents

Trouble typeC720A: Registration clutch failure
RankC
Trouble detection conditionAfter starting the clutch, an error is detected for the malfunction detection signal.
Trouble isolation–
Relevant electrical partsRegistration clutch (CL4)Base board (BASEB)

Procedure

  1. Check the connector between CL4-relay CN45-BASEB CN22E for proper connection and correct as necessary.
  2. Check the connector of CL4 for proper drive coupling and correct as necessary.
  3. CL4 conduction check
    • Control signal: BASEB CN22EA-3 (ON)
    • Location of electrical component: 12-C
  4. Replace CL4.
  5. Replace BASEB.

(Link to the Field Service Manual)